74219407 has 4 divisors (see below), whose sum is σ = 74245696. Its totient is φ = 74193120.

The previous prime is 74219401. The next prime is 74219429. The reversal of 74219407 is 70491247.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 74219407 - 2²³ = 65830799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74219401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8319 + ... + 14752.

It is an arithmetic number, because the mean of its divisors is an integer number (18561424).

Almost surely, 2^74219407 is an apocalyptic number.

74219407 is a deficient number, since it is larger than the sum of its proper divisors (26289).

74219407 is a wasteful number, since it uses less digits than its factorization.

74219407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26288.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 74219407 is about 8615.0686010037. The cubic root of 74219407 is about 420.2481658843.

The spelling of 74219407 in words is "seventy-four million, two hundred nineteen thousand, four hundred seven".